Heart Failure, Systolic

• Leeds General Infirmary — Leeds, United Kingdom

• Hospital District of Helsinki and Uusimaa, Helsinki University Hospital, Heart and Lung Center & Cardiac Unit — Helsinki, Uusimaa, Finland

• San Diego Cardiac Center — San Diego, California, United States
• University of California, San Francisco — San Francisco, California, United States
• Washington University in Saint Louis — St Louis, Missouri, United States
• University of Texas Southwestern Medical Center — Dallas, Texas, United States

• Azienda Ospedaliero-Universitaria di Ferrara — Ferrara, FE, Italy
• Ospedale San Donato — Arezzo, Italy
• Azienda Ospedaliero-Universitaria S.Orsola-Malpighi Bologna — Bologna, Italy
• spedale Maggiore di Bologna — Bologna, Italy

• University of Virginia Health System — Charlottesville, Virginia, United States

• Rocky Mountain Regional VA Medical Center, Aurora, CO — Aurora, Colorado, United States

Not specified

• Tampa General Hospital — Tampa, Florida, United States
• Abbott Northwestern — Minneapolis, Minnesota, United States
• Rutgers-Robert Wood Johnson Medical School — New Brunswick, New Jersey, United States
• Atrium Health — Charlotte, North Carolina, United States

Not specified

Not specified